Theo Johnson-Freyd

22,317
Reputation
11481 views
Is this your account?

Registered User 

Name Theo Johnson-Freyd
Member for 3 years
Seen 5 hours ago
Website
Location Berkeley
Age 27
Graduate student at UC Berkeley, studying quantum field theory.
151

Questions
votes newest views recent
10

7

29

11

10

20

11

22

9

18

1 2 3 4 5 … 16 next

 

216

Answers
votes newest views recent
55
What is to Quantize something?
51
Why worry about the axiom of choice?
44
“Philosophical” meaning of the Yoneda Lemma
37
How to respond to “I was never much good at maths at school.”
36
Quantum dynamics on varieties and Salmon Prizes
28
Topological Characterisation of the real line.
22
Why linear algebra is fun!(or ?)
20
Is there a reason why integrals are so much easier to evaluate than sums?
20
A single paper everyone should read?
20
In knot theory: Benefits of working in $S^3$ instead of $\mathbb{R}^3$?
18
Mathematical foundations of Quantum Field Theory
16
Examples of great mathematical writing
16
Is there an explicit construction of a free coalgebra?
15
Sieve of Eratosthenes - eventual independence from initial values
15
BRST cohomology
15
A problem of an infinite number of balls and an urn
14
Combinatorial equation
14
What’s up with Wick’s theorem?
14
“Modern” proof for the Baker-Campbell-Hausdorff formula
13
Examples of seemingly elementary problems that are hard to solve?
13
Is there a Faa di Bruno-like formula for composition of three functions?
12
Favorite popular math book
12
When and why did the postdoctoral position originate?
12
Quantization and noncommutative deformations
12
quantum groups… not via presentations
11
Can distinct open knots correspond to the same closed knot?
11
Writing papers in pre-LaTeX era?
11
Character table does not determine group Vs Tannaka duality
11
When does a subgroup H of a group G have a complement in G?
11
Are there any good websites for hosting discussions of mathematical papers?
1 2 3 4 5 … 8 next

 

1499

Votes
1384
115

 

219

Tags
× 80
× 43
× 38
× 32
× 31
× 27
× 27
× 24
× 23
× 21
 × 21
× 20
× 18
× 18
× 17
× 16
× 16
× 14
× 12
× 11
 × 11
× 11
× 11
× 10
× 10
× 10
× 9
× 8
× 8
× 8
 × 8
× 8
× 7
× 7
× 7
× 6
× 6
× 6
× 6
× 6
 × 5
× 5
× 5
× 5
× 5
× 5
× 5
× 5
× 5
× 5

 

139

Badges
● Popular Question× 21
● Nice Question× 46
● Notable Question× 3
● Nice Answer× 32
● Enlightened× 4
● Yearling× 3
 ● Favorite Question
● Good Answer× 6
● Good Question× 4
● Reversal
● Guru× 2
● Pundit
 ● Fanatic
● Taxonomist
● Civic Duty
● Mortarboard
● Citizen Patrol
● Organizer
 ● Enthusiast
● Critic
● Scholar
● Autobiographer
● Commentator
● Teacher
 ● Supporter
● Editor
● Student